package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class Demo3 {
    public static void main(String[] args) throws SQLException, ClassNotFoundException {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root","byb141700");
        System.out.println("与数据库正常链接！");
        Statement statement = connection.createStatement();
        /*
        UPDATE user
        SET password='666666',nickname='老三',age=33
        WHERE id=1
         */
        Statement statement1 = connection.createStatement();
        String sql = "UPDATE user " +
                "SET password='666666', nickname='老三', age=33 " +
                "WHERE id=1";
        int num = statement.executeUpdate(sql);
        if(num>0){
            System.out.println("修改成功");
        }else {
            System.out.println("修改失败");
        }
        connection.close();
    }
}
